Analysis of the Stability of River Channels Using Methods of Bed Shear Stress and the Relative Strength Index (Ranging Between 30 km Miyaneh City to the Zanjan Political Boundaries)

Instability of the river channel has significant role in creating erosion, degradation of coastal and Facilities around the river. This role will be intensified especially when the channel of river bed is alluvial. By monitoring changes in river morphology and specific measures can be prevented from the occurrence of Instability River. The purpose of this study is investigation the stability of the river, using experimental and mathematical methods and comparing the results of these methods with results of field studies and morphological characteristics of each interval in nature. In this research, the study area is Qezel Ozan River in longitudes 47 48' to 48 27' and latitudes 37 12′ to 37 25′. In this study for the separation of mountain and plain intervals, the studied route was divided into three periods.